Answer:
There are many books but I personally suggest the following :-
1) The Twelve Caesars. by Suetonius and translated by Robert Graves.
2)The Decline and Fall of the Roman Empire. by Edward Gibbon.
3)The Roman Revolution. by Ronald Syme.
The Roman Triumph. by Mary Beard.
4)Pagans and Christians. by Robin Lane Fox.
The first main reason was most of the market was based solely on credit, which was stock that was purchased without actual cash, but purchased on credit.
The second factor was the massive pull out by many investors due to a panic that caused the Banks to attempt to purchase these stocks leading to a complete collapse in the market.
Answer:
c) railroads had to charge everyone the same prices